| US 7,478,555 B2 | ||
| Technique and apparatus for use in well testing | ||
| Lang Zhan, Pearland, Tex. (US); James G. Filas, Sugar Land, Tex. (US); and Dhandayuthapani Kannan, Missouri City, Tex. (US) | ||
| Assigned to Schlumberger Technology Corporation, Sugar Land, Tex. (US) | ||
| Filed on Aug. 25, 2005, as Appl. No. 11/211,892. | ||
| Prior Publication US 2007/0050145 A1, Mar. 01, 2007 | ||
| Int. Cl. E21B 47/08 (2006.01) | ||
| U.S. Cl. 73—152.55 [73/152.01; 73/152.54] | 32 Claims |
| 1. A method usable with a well, comprising:
communicating fluid from the well into a downhole chamber in connection with a well test;
monitoring a downhole pressure parameter responsive to the communication of the fluid to determine when to close the chamber;
and
closing the chamber in response to the monitoring, comprising isolating the chamber from a bottom hole pressure in the well.
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